We have to keep the belief and work very hard.

我们必须保持信心并努力工作。

youdao

We should keep the belief that love is real and nice.

我们应该坚信真爱存在且美好！

youdao

"I hope you will always keep this beautiful belief, Heidi," said the doctor.

“我希望你能永远抱有这个美好的信念，海蒂。”医生说。

youdao

And since that was the best you could do under that belief, you'll hopefully keep your job.

因为那的确是在这种信念下的最佳策略,你也就不会因此被炒鱿鱼了

耶鲁公开课 - 博弈论课程节选

Relegation from the First Division last season hasn't helped their cause, but despite the hard work required to keep the club on an even keel, his belief in the worthiness of what he and his fellow supporters are doing is unwavering.

BBC: Who dares to pay, wins

And so my belief is that we can keep the American people safe, go after those who would engage in terrorism.

WHITEHOUSE: Presidential Press Conference on a Historic Congressional Session | The White House

Some governments are trying to keep GM plants out of their country, in the belief that there will be a long-term market for produce from guaranteed GM-free sources.

ECONOMIST: Invasion of the transgenics